Nordic Sports is obsessed with bringing you the best socks on the planet. So, naturally, we stock Darn Tough. For almost 40 years, Ric Cabot's family has been knitting socks in Northfield, Vermont, and they're dedicated to creating the world's best. Their all-weather performance socks are probably the most comfortable, durable and best fitting socks you’ll ever own. In fact, they're so good they come with an unconditional lifetime guarantee. Darn Tough's lifetime guarantee is simple and without strings or conditions. If the socks are not the most comfortable, durable and best fitting socks you have ever owned, return them to Darn Tough for another pair!